RangerWolf651 here with a demo chapter of sorts for this idea of mine for a Halo/MHA crossover and let this be known that writing isn't my strong point so don't judge for a few mistakes I make with grammars and other stuff so let see how this goes.

Midoriya stared out the window of his SOEIV as it raced through the upper atmosphere of his Earth, still not believing that for 30+ years that he is back into his own universe somehow still 14 years old. Grazing to his side window as he watched others SOEIV contenting his ODSTs and a four-man team of Spartan IV descend with him as he took a deep breath and exhausting before getting on his comm.

"Alright troopers listen up, we enter the lower atmosphere in T-minus 50 seconds, our drop zone is the USJ, if my memory serves me correctly it is a rescue training facility for UA. Said Midoriya as the drop pods enter the lower atmosphere.

"Hey Captain" said one ODST over the radio. "You said about 90% of your world has some kind of superpowers or some shit like that, what kind of resistances we should expect on touchdown?" asked the ODST as he is a bit worried about what kind of abilities they might encounter.

"Resistances are of the unknown variety" responded Izuku as the pods entered the lower atmosphere. "From the intel we received before communication was cut off from one of the students, most of the villains seem to be of street level with minor quirks but are in possession of a portal quirk user while the leader's quirk is unknown as of this time".

"Roger that sir, ETA for ground impact is 30 seconds so lock and load troopers and be prepared for heavy contact upon landing" said one of the Spartan as the pods rocketed pass the clouds to reveal the dome-shaped building of the USJ as Midoriya closed his eyes as the drop pods breach the glass roof of the USJ.

Kaminari let out small sigh of breaths before being pull out of the way of a mace as Jiro use her earphone jack to throw Kaminari behind her as she blocks an attack from a villain with her sword as Momo attack from the side with her bo staff knocking the villain unconscious before moving to the side of Jiro to better defend their area as Denki landed behind them.

"What the hell are you doing sitting down Kaminari!" Yelled Jiro as she plugged her earphone jack into her boot and let out a strong blast of sound into a group of villains sending them flying back.

"Sorry, I managed to get into contact through my headset and they're going to send help, so we're saved!" Kaminari yelled back before ducking as a hardened rock impacted into the wall behind as he saw a villain holding his arm out as it shifted into a hardened state before taking aim at him. Momo came in with an overhead swing with her staff striking the villain's arm, making him fired into the ground as she twisted her staff around slamming it into the villain's gut before falling back next to Kaminari as she helped him up.

"Kaminari, who did you get into contact with?" Questioned Momo as she created several small balls before throwing them at the villain's feet as the ball exploded into a cloud of gas forcing the villains to fall back as well.

" I don't know, they sounded military when they responded to my call, they said they managed to pinpoint our location before I lost the signal" responded Kaminari to Momo's question as Jiro ran next to him.

"The military? That has to be good right? they're probably getting into contact with UA and law enforcement and have to be on their way here right now" said Jiro as she looked around for any villains that might have gotten around the gas.

"Let hope so because I don't think we would be able to hold out long enough for Iida to get to UA and back at his speed" Yaoyorozu pointed out as she took a breather from fighting off the villains. She kept her eyes out for any movement on the gas cloud hoping the villains would not figure out her bluff on the gas as it was just regular smoke made to smell and look poisonous.

Seeing the smoke slowly clearing up as the groups of villains begin to make their way toward the students as they prepare to fight again. Before the villains can get closer to the students, a loud crash is heard as something broke through the glass ceiling of the USJ as several black pods landed between the students and the villains as both looked confused by the sudden arrived of these strange pods. Before the villains have the chance to push forward, the pod's hatches pop off as several heavily armed and armored people jump out of the pods and take aim at the villains.

"Alright villains, any one of you making a move for a weapon or trying to use your quirks will be considered hostile and we will open fire on you!" Yelled one of the armored men as he aimed his rifle at the group of villains as the rest of the armored group moved to cover keeping their weapons on the villains. The students stare in shock as the armed men hold the villains at gunpoint as Kaminari cheered before one of the troopers broke off from his position and ran toward them to check on them.

"Are you guys, okay?" questioned the trooper as the students noticed that his voice sounded young and yet carried a tone of someone who is much older. Yaoyorozu, recovering from the stock, quickly responded to the troopers.

"Y-Yes we're alright for now but there still more villains thorough the USJ with the rest of our classmates while Aizawa-sensei fighting the main group in the center with the leader and some kind of monster brute" spoked the young heiress as she sounded concerned about her teacher and classmates.

Don't worry Miss, reinforcements are on their way with medics on standby for any wounded and Marines to provide additional support to resume your classmates" said the troopers as Yaoyorozu starred in the black visor of the trooper's helmet before Jiro asked.

"Not to sound ungrateful or anything but just in the hell who are you guys?" Questioned Jiro as she looked over the trooper in question armor and weapons, seeing it not like anything she saw in any military unit from Japan or its allies. The troopers stare at the trio of students before removing his helmet to show them his face as they look shocked to see someone who is their age. The teen in the black armor had his dark green hair styled in an undercut that still held some length to it on top as his face is rounded with large circular eyes that are of the same shade of green of his hair. Another notable feature of his are the four symmetrical freckles in diamond formations on each cheek. The girls would describe him as "plain-looking" if it wasn't for the fact that his face held a battle worn look to it.

"I'm Sergeant Izuku Midoriya of the UNSC Eternity, Team leader of ODSTs squad Delta-Six" responded Midoriya as he looked at the shocked faces of the students. Yaoyorozu quickly recovered yet again from her stock as she recognized him.

"Wait, are you that teen that mysteriously disappeared a year ago? There was a nationwide search for you that included All-Might himself but was unable to find any traces of you." Yaoyorozu said as she stared at Midoriya not believing that not only he isn't dead but alive in some kind of military unit. Kaminari, who just got out of stock, asked.

"Dude, everyone was looking for you for at least 6 months. Where the hell have you been?" Midoriya simply just sighed as he looked at them.

"That a long and hellish story that is best for another time" spoked Midoriya in a deep and sad tone as he looked down at his battle-scarred helmet and the reflection of him on the visor.

Well, this is the end of my demo chapter of my Halo/MHA crossover, or it could be just a regular MHA with Halo elements in it. I hope I was able to make a decent story with this demo of mine and see if I can improve my writing to create a better story for everyone to enjoy. So, this is RangerWolf651 signing out.